title: FDTD modeling of solar energy absorption in silicon branched nanowires.
abstract: Thin film nanostructured photovoltaic cells are increasing in efficiency and decreasing the cost of solar energy. FDTD modeling of branched nanowire 'forests' are shown to have improved optical absorption in the visible and near-IR spectra over nanowire arrays alone, with a factor of 5 enhancement available at 1000 nm. Alternate BNW tree configurations are presented, achieving a maximum absorption of over 95% at 500 nm.
authors.forename: Christin
authors.initials: C
authors.lastname: Lundgren
authors.forename: Rene
authors.initials: R
authors.lastname: Lopez
authors.forename: Joan
authors.initials: J
authors.lastname: Redwing
authors.forename: Kathleen
authors.initials: K
authors.lastname: Melde